Universal Audio Apollo Twin Duo Audio Interface

• World-class 24-bit/192 kHz audio conversion
• Realtime UAD Processing — track through vintage Compressors, EQs, Tape Machines, and Guitar Amp plug-ins with near-zero latency*
• New Unison™ technology for stunning models of classic mic preamps**
• Available with either UAD-2 SOLO or UAD-2 DUO DSP Processing onboard
• Includes “Realtime Analog Classics” UAD plug-in bundle
• Thunderbolt connection for blazing-fast PCIe speed on modern Macs
• 2 premium mic/line preamps; 2 line outs; front-panel Hi-Z instrument input and headphone output
• Digitally controlled analog monitor outputs for full resolution at all listening levels
• Uncompromising analog design, superior components, and premium build quality throughout

Audio Interface

• Sample rates up to 192 kHz at 24-bit word length
• 18 x 24 simultaneous input/output channels:
  • Eight channels of analog-to-digital conversion via mic, line, or high-impedance inputs
• 14 channels of digital-to-analog conversion via:
  • Eight mono line outputs
  • Stereo monitor outputs
  • Two stereo headphone outputs
• 10 channels of digital I/O via:
  • Eight channels ADAT Optical I/O with S/MUX for high sample rates
  • Two channels coaxial S/PDIF I/O with sample rate conversion
  • Two FireWire 800 ports for daisy-chaining other FireWire devices
• 32-bit and 64-bit device drivers

Microphone Preamplifiers

• Four high-resolution, ultra-transparent, digitally-controlled analog mic preamps
• Front panel and software control of all preamp parameters
• Switchable low cut filter, 48V phantom power, 20 dB pad, polarity inversion, and stereo linking

Monitoring

• Stereo monitor outputs (independent of eight line outputs)
• Digitally-controlled analog monitor outputs maintains highest fidelity
• Front panel control of monitor levels and muting
• Two stereo headphone outputs with independent mix buses
• Independent front panel analog volume controls for headphone outputs
• Front panel pre-fader metering of monitor bus levels
• S/PDIF outputs can be set to mirror the monitor outputs

Onboard UAD-2 Processing

• DUO and QUAD models featuring two or four SHARC processors
• Realtime UAD Powered Plug-Ins processing on all of Apollo’s analog and digital inputs
• Same features and functionality as other UAD-2 products when used with DAW
• Can be combined with other UAD-2 devices for increased mixing DSP
• Includes UAD Powered Plug-Ins “Analog Classics” bundle
• Complete UAD-2 Powered Plug-Ins library is available online 24/7

Software

• Console application:
  • Enables Realtime UAD Powered Plug-Ins processing
  • DSP mixer for realtime monitoring and tracking
  • Remote control of all Apollo features and functionality
• Console Recall plug-in:
  • Saves Apollo configurations inside DAW sessions for easy recal
  • Enables control of all front panel parameters from within the DAW
  • VST, RTAS, and Audio Units plug-in formats
• UAD Meter & Control Panel application:
  • Configures global UAD-2 and Powered Plug-Ins settings and monitors system usage

Specifications

System

• I/O Complement
  • Microphone Inputs 4
  • High-Impedance Inputs 2
  • Analog Line Inputs 8
  • Analog Line Outputs 8
  • Analog Monitor Outputs 2 (1 stereo pair)
  • Headphone Outputs 2 stereo (independent mix buses)
  • ADAT Up to 8 channels via dual I/O ports with S/MUX
  • S/PDIF 1 stereo input, 1 stereo output
  • FireWire 800 (IEEE 1394b) Dual ports
  • Thunderbolt (via Option Card) Dual ports
  • Word Clock 1 input, 1 output
• A/D – D/A Conversion
  • Supported Sample Rates (kHz) 44.1, 48, 88.2, 96, 176.4, 192
  • A/D Bits Per Sample 24
  • Simultaneous A/D conversion 8 channels
  • Simultaneous D/A conversion 14 channels
  • Analog Round-Trip Latency 1.1 milliseconds @ 96 kHz sample rate
  • Analog Round-Trip Latency with four serial UAD-2 plug-ins via Console application 1.1 milliseconds @ 96 kHz sample rate

Analog I/O

• Microphone Inputs 1 – 4
  • Jack Type XLR Female
  • Phantom Power +48V, Switchable
  • Dynamic Range 118 dB (A–weighting)
  • Signal-to-Noise Ratio 118 dB (A–weighting)
  • Total Harmonic Distortion + Noise –110 dB
• Hi–Z Inputs
  • Jack Type ¼” Male (Mono TS plug required)
  • Dynamic Range 117 dB (A–weighting)
  • Signal-to-Noise Ratio 117 dB (A–weighting)
  • Total Harmonic Distortion + Noise –103 dB
• Line Inputs 1 – 4
  • Jack Type ¼”Male TRS Balanced
  • Dynamic Range 117 dB (A–weighting)
  • Signal-to-Noise Ratio 117 dB (A–weighting)
  • Total Harmonic Distortion + Noise –107 dB
• Line Inputs 5 – 8
  • Jack Type ¼” Male TRS Balanced
  • Dynamic Range 117 dB (A–weighting)
  • Signal-to-Noise Ratio 117 dB (A–weighting)
  • Total Harmonic Distortion + Noise –107 d
• Line Outputs 1 – 8
  • Jack Type ¼” Male TRS Balanced
  • Dynamic Range 118 dB (A–weighting)
  • Frequency Response 20 Hz – 20 kHz, ±0.1 dB
  • Signal-to-Noise Ratio 118 dB (A–weighting)
  • Total Harmonic Distortion + Noise –106 dB
• Monitor Outputs 1 – 2
  • Jack Type ¼” Male TRS Balanced
  • Frequency Response 20 Hz – 20 kHz, ±0.1 dB
  • Dynamic Range 115 dB (A–weighting)
  • Signal-to-Noise Ratio 114 dB (A–weighting)
  • Total Harmonic Distortion + Noise –103 dB
• Stereo Headphone Outputs 1 & 2
  • Jack Type ¼” Male TRS Stereo/Unbalanced
  • Frequency Response 20 Hz – 20 kHz, ±0.1 dB

Digital I/O

• S/PDIF
  • Jack Type Phono (RCA)
  • Format IEC958
• ADAT
  • Jack Type Optical TOSLINK JIS F05
  • Format ADAT Digital “Lightpipe” with S/MUX
  • Channel Assignments @ 44.1 kHz, 48 kHz Port 1 = Channels 1 – 8, Port 2 = 1 – 8 (mirrored)
  • Channel Assignments @ 88.2 kHz, 96 kHz Port 1 = Channels 1 – 4, Port 2 = Channels 5 – 8
  • Channel Assignments @ 176.4 kHz, 192 kHz Port 1 = Channels 1 – 2, Port 2 = Channels 3 – 4
• Word Clock
  • Jack Type BNC
  • Lock Range ±0.5% of any supported sample rate
  • Word Clock Input Termination 75 Ohms, switchable
• Synchronization Sources
  • Internal, Word Clock, S/PDIF, ADAT

Electrical

• Power Supplies External AC to DC Power Supply Brick, Internal DC to DC Power Supply
• AC Connector Type IEC Male
• AC Requirements 100V – 240V AC, 50 – 60 Hz
• DC Connector Type XLR 4-Pin Locking Male (Neutrik P/N NC4MDM3-H)
• DC Requirements 12 VDC, ±5%
• Maximum Power Consumption 6.5 amperes

Mechanical

• Dimensions
  • Width 19”
  • Height 1.75” (1U rack space)
  • Depth, Chassis Only 12.125”
  • Depth, Including Knob & Jack Protrusions 13.5”
  • Shipping Box (Width x Depth x Height) 24” x 17” x 8”
• Weight
  • Shipping Weight (with box & accessories) 18 pounds
  • Weight (bare unit) 9.1 pounds

Minimum UAD System Requirements